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In this Sept. 15, 2011 photo, a new Dave's Hot 'N Juicy Cheeseburger is displayed in the Wendy's research and development laboratory at the company's international headquarters in Dublin, Ohio. (AP Photo/Paul Vernon)

In this Sept. 15, 2011 photo, a new Dave's Hot 'N Juicy Cheeseburger is displayed in the Wendy's research and development laboratory at the company's international headquarters in Dublin, Ohio. (AP Photo/Paul Vernon)